- Generator Set:
- C9 (S/N: C9A1-UP; C9E1-UP; SJB1-UP)
- Industrial Engine:
- C9 (S/N: JSC1-UP; CLJ1-UP; MBD1-UP; JLW1-UP)
- Marine Engine:
- C9 (S/N: CSN1-UP; C9B1-UP; X9X1-UP; X9Y1-UP)
- Engine:
- C9 (S/N: LFE1-UP; X3R1-UP; C9Y1-UP)
- Petroleum Engine:
- C9 (S/N: P9L1-UP; KLW1-UP)
- Package:
- TH31-C9I (S/N: PAZ1-UP)
- Transmission:
- TH31-E61 (S/N: SKY1-UP)
Description of Change: The improved oil pump assembly utilizes a new design of the plunger in the pressure relief and the housing has been improved. This change increases the service life of the part.
Adaptable To: The new 331-8905 Engine Oil Pump As is a direct replacement for the existing 210-5522 Engine Oil Pump As .
The old 211-0546 Engine Oil Pump Gp that included the 221-0144 Gear As is no longer available from parts service. The idler gear is reusable if condition is acceptable. If replacements are needed, replacement 221-0144 Gear As must be ordered separately. Refer to the Reuse and Salvage Guidelines for the reusability of the part.
The remanufactured 10R-1984 Engine Oil Pump As is still a valid number and the remanufactured part is made to the new 331-8905 Engine Oil Pump As specifications. A change in the level of the revision to the remanufactured part signifies the change in specifications.
This change is effective for all engine serial numbers that are built after 20July 2009.